Detail of "700-13-0"

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CAS Number:
700-13-0
Name:
1,4-Benzenediol,2,3,5-trimethyl-
Superlist Name:
Trimethylhydroquinone
Molecular Structure:
Formula:
C₉H₁₂O₂
Molecular Weight:
152.19
Synonyms:
Hydroquinone,trimethyl- (6CI,7CI,8CI);1,4-Dihydroxy-2,3,5-trimethylbenzene;2,3,5-Trimethyl-1,4-benzenediol;2,3,5-Trimethyl-1,4-hydroquinone;2,3,5-Trimethyl-p-hydroquinone;2,3,5-Trimethylhydroquinone;NSC 401617;Pseudocumohydroquinone;Trimethyl-p-hydroquinone;Trimethylhydroquinone;y-Cumohydroquinone;
EINECS:
211-838-3
Density:
1.126 g/cm³
Melting Point:
169-174 °C
Boiling Point:
298.3 °C at 760 mmHg
Flash Point:
146.3 °C
Appearance:
off-white, tan or orange powder
Hazard Symbols:
Xn; N
Risk Codes:
20-37/38-41-43-50/53
Safety:
24-26-37/39-60-61 Details
Transport Information:
UN 3077 9/PG 3
particular:
particular

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Reference

Identification of impurities in vitamin E and its key intermediates by GC/MS: Identification of impurities in vitamin E and its key intermediates by GC/MS. Yu, Jingrong; Zhang, Shenan; Wang, Huimin; Zhang, Yusheng; Xu, Xinchang (Shanghai Inst. Pharm. Ind., Shanghai, Peop. Rep. China). Yiyao Gongye, 17(12), 543-5 (Chinese) 1986. CODEN: YIGODN. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) The sepn. and identification of the impurities in vitamin E (I) [1406-18-4], 2,3,5-trimethylhydroquinone (TMHQ) [700-13-0], isophytol [505-32-8] and its intermediates by gas chromatog./mass spectrometry (GS/MS) are described. The system used was a Varian 3700 gas chromatograph coupled to a Varian MAT 212 mass spectrometer. The capillary columns, SE-54 for sepg.In this experiment, several chemicals are used like 505-32-8 and 33185-23-8 I, SE-52 for TMHQ, PEG 20 M for isophytol and various intermediates, were used. .

Unsaturated polyester resin compositions containing crosslinking accelerators: Unsaturated polyester resin compositions containing crosslinking accelerators. (Mitsubishi Gas Chemical Co., Inc., Japan). Jpn. Kokai Tokkyo Koho JP 59131615 A2 28 Jul 1984 Showa, 7 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08F299-04; C08K005-08; C08K005-09; C08K005-13; C08L067-06. APPLICATION: JP 82-216634 10 Dec 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Mixts. (100 parts) of unsatd. polyesters, polymerizable vinyl monomers, and polyhydric phenols polymn. inhibitors and 0.0001-0.01 part (as metal) org. acid salts of Cu, Zn, Sn, Pb, or Co are mixed at 60-120° with introduction of air and compounded with crosslinking catalysts contg. org. acid Co salts and optionally amines and 0.005-0.1 part/100 parts unsatd. polyester polymn. inhibitors contg. 50-80% trimethylhydroquinone (I) [700-13-0] and hydroquinone (II) [123-31-9], p-benzoquinone [106-51-4], toluhydroquinone (III) [95-71-6], or tert-butylcatechol (IV) [27213-78-1]. Thus, 1920 g :836 maleic anhydride-phthalic anhydride-propylene glycol copolymer [25037-66-5] was dissolved in 1030 g styrene contg. 0.21 g II and 0.32 g Cu naphthenate (5% Cu), kept at 70-75°, blown with air, and stored 14 days at 20°. The mixt. was stored ￡35 days and mixed (400 g) with styrene 33, I 0.057, III 0.029, dimethylaniline [121-69-7] 0.22, and 6% Co naphthenate 1.73 g to prep. a compn. having gelation time 11.3, 11.5, and 11.5 min after 0, 14, and 35 days, resp., compared with 15.5, 18.9, and 27.7, resp., for a similar compn. contg. 0.086 g IV in place of I and III.

Detail of "700-13-0"

1,4-Benzenediol,2,3,5-trimethyl-

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Reference